IGSF8是一种先天免疫检查点和癌症免疫治疗点
Yulong Li1, Xiangyang Wu1, Caibin Sheng2
1Shanghai Xunbaihui Biotechnology Co., Ltd., 3rd floor of Building 4, No. 3728, Jinke Road, Pudong New Area, Shanghai, 201203, China.
Cell
|April 24, 2024
概括
瘤通过IGSF8逃避天生的免疫力,这抑制了自然杀手 (NK) 细胞的功能. 阻断IGSF8可以增强NK细胞的活性,抑制瘤的生长,从而成为新的治疗点.
科学领域:
- 免疫学
- 癌症学
- 分子生物学
背景情况:
- 瘤通过抗原呈现缺陷逃避适应性免疫.
- 瘤逃避天生的免疫机制仍然不太清楚.
- 自然杀手 (NK) 细胞对于先天的抗瘤反应至关重要.
研究的目的:
- 发现瘤逃避天生的免疫机制.
- 研究IGSF8在NK细胞抑制中的作用.
- 评估抗IGSF8抗体作为潜在的癌症免疫疗法.
主要方法:
- 通过CRISPR查识别免疫规避基因.
- 在体外和体内测试以评估NK细胞功能.
- 评估抗IGSF8治疗功效的综合性瘤模型.
主要成果:
- 在瘤上表达的IGSF8通过与KIR3DL2/ Klra9受体相互作用来抑制NK细胞功能.
- IGSF8过度表达与不良的临床结果和减少的免疫透相关.
- 抗IGSF8抗体治疗增强NK细胞毒性,并在体内抑制瘤生长.
结论:
- IGSF8作为瘤的先天免疫检查点.
- 针对IGSF8是一种有前途的癌症免疫治疗策略.
- 结合抗IGSF8和抗PD1疗法显示出协同作用的抗瘤作用.
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